An air-oil double-tube combined damper

Abstract

The invention discloses a gas-oil double-cylinder combined damper. The damper comprises a hanging ring, a gas cylinder body, an oil cylinder body, an upper end cover and a lower end cover, wherein theinner wall of the lower end of an outer cylinder is in sealed sliding fit with the outer wall of the upper end of the oil cylinder body, the outer wall of the lower end of an inner cylinder is in sealed sliding fit with the inner wall of the upper end of the gas cylinder body, an I-shaped gas cylinder piston is arranged in the gas cylinder body, a spring is arranged between the bottom end of theinner cylinder and a horizontal section of the lower end of the gas cylinder piston, and a gas hole is formed in the horizontal section of the lower end of the gas cylinder piston; and the bottom of the gas cylinder body is fixedly connected with an oil cylinder piston, the oil cylinder piston is provided with a circulation valve and a stretching valve, a compression valve and a compensation valveare arranged at the bottom of the oil cylinder body, the bottom of the oil cylinder body is fixedly connected with the lower end cover, and an oil tank is formed between the lower end cover and the oil cylinder body. The damper can play a good buffering role on different pavements, has the damping characteristic of low-frequency large damping, high-frequency small damping and medium-frequency transition damping, and improves riding comfort.

Description

Technical field [0001] The invention relates to the technical field of damper, in particular to a combined damper. Background technique [0002] The damper is a device that provides resistance to movement and consumes movement energy, and is used to absorb the natural vibration energy of the vibration system. There are three main types of dampers: liquid dampers, gas dampers and electromagnetic dampers. Dampers have a wide range of applications and are used in many industries. Liquid dampers, car bodies and wheels are widely used in automotive suspensions. When vibrating, the viscous friction of the liquid inside the damper will form vibration resistance, which converts the vibration energy into heat and dissipates it into the air to achieve the purpose of attenuating vibration. However, the current liquid damper has poor damping effect and can only achieve low frequency. Damping or achieving high-frequency small damping, single damping characteristics make the application range...

AI Technical Summary

Problems solved by technology

Dampers mainly include liquid dampers, gas dampers and electromagnetic dampers. Dampers have a wide range of applications and are used in many industries. Liquid dampers are widely used in automobile suspensions, automobile bodies and wheels. When vibrating, the viscous friction of the liquid inside the damper will form vibration resistance, convert the vibration energy into heat energy, and dissipate it into the air to achieve the purpose of attenuating vibration. However, the current liquid damper has poor damping effect and can only achieve low-frequency large Damping or high-frequency small damping, the damping characteristics are single, making the application range of the damper narrow, which can no longer meet the diverse needs of real life

Images